Simulation Study on NOx Emissions from A Certain Loader in a High-altitude Environment
In order to explore the combustion emission characteristics of construction machinery in high-alti-tude environments,this paper takes a diesel engine of a certain loader as a prototype,establishes a numerical cal-culation model in high-altitude environments,and studies the combustion emission characteristics of the diesel engine in high-altitude environments.The results indicate that the generation of NOx is closely related to the temperature inside the engine cylinder.And when the engine speed remains constant,as the altitude increases,the NOx emissions from the engine show a trend of first increasing and then decreasing;When the altitude re-mains constant,the engine speed increases and its NOx emissions gradually increase.
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